pinctrl: Adjust five checks for null pointers

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The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 44471f6..2f4bcb6 100644 (file)
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -319,7 +319,7 @@ static int pinconf_pins_show(struct seq_file *s, void *what)
                pin = pctldev->desc->pins[i].number;
                desc = pin_desc_get(pctldev, pin);
                /* Skip if we cannot search the pin */
-               if (desc == NULL)
+               if (!desc)
                        continue;
 
                seq_printf(s, "pin %d (%s): ", pin, desc->name);
@@ -524,7 +524,7 @@ static ssize_t pinconf_dbg_config_write(struct file *file,
 
        /* get arg 'device_name' */
        token = strsep(&b, " ");
-       if (token == NULL)
+       if (!token)
                return -EINVAL;
        if (strlen(token) >= MAX_NAME_LEN)
                return -EINVAL;
@@ -532,7 +532,7 @@ static ssize_t pinconf_dbg_config_write(struct file *file,
 
        /* get arg 'state_name' */
        token = strsep(&b, " ");
-       if (token == NULL)
+       if (!token)
                return -EINVAL;
        if (strlen(token) >= MAX_NAME_LEN)
                return -EINVAL;
@@ -540,7 +540,7 @@ static ssize_t pinconf_dbg_config_write(struct file *file,
 
        /* get arg 'pin_name' */
        token = strsep(&b, " ");
-       if (token == NULL)
+       if (!token)
                return -EINVAL;
        if (strlen(token) >= MAX_NAME_LEN)
                return -EINVAL;
@@ -548,7 +548,7 @@ static ssize_t pinconf_dbg_config_write(struct file *file,
 
        /* get new_value of config' */
        token = strsep(&b, " ");
-       if (token == NULL)
+       if (!token)
                return -EINVAL;
        if (strlen(token) >= MAX_NAME_LEN)
                return -EINVAL;